Churn-dasher



N0. 6l4,l38. Patented Nov. I5, 1898.

S SIMS CHUBN DASHER.

(Application filed Apr. 4, 1898.)

(No Model.)

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UNITED STATES PATENT OFFICE.

SILAS SIMS, OF HANNIBAL, MISSOURI.

CHURN-DASHER.

SPECIFICATION forming part of Letters Patent No. 614,138, dated November 15, 1898.

Application filed April 4, 1398. Serial No. 676,421. (No model.)

To aZZ whom zit-may concern:

Be it known that 'I, SILAs SIMS, a citizen of the United States, residing at Hannibal, in the county of Marion and State of Missouri, have invented a new and useful Churn-Dasher, of which the following is a specification.

My invention relates to churn-dashers, and has for its objectto provide a dasher so constructed as to thoroughly agitate the contents of a churn-receptacle and cause theaeration thereof, the dasher-blades being preferably employed in duplicate, operating at different depths in the churn-receptacle, and so constructed as to impel the liquid contents of the receptacle in different directions.

Further objects and advantages of this invention will appear in the following description, and the novel featuresthereof will be particularly pointed out in the appended. claims.

In the drawings, Figure 1 is a view of a churn, including a dasher, constructed in accordance with my invention, the receptacle being shown in section. Fig. 2 is an edge View of the dasher. Figs. 3 and 4 are detail views in perspective, respectively, of the dasher-blade deflectors.

Similar numerals of reference indicate corresponding parts in all the figures of the drawings.

1 designates a dasher staff or spindle, adapted to receive rotary motion by means of any suitable driving mechanism, such as the intermeshing bevel-gears 2 and 3, (illustrated in Fig. 1,) the driving-gear 2 being actuated by a crank shaft or its equivalent. The dasher-staff is of uniform cross-sectional area, and fitted thereon for axial adjustment are the hubs or sleeves 4 and 5 of upper and lower dasher-blades 6 and 7. Each dasher-blade preferably includes a plurality of cross-sectionally fiat arms extending radially from the hub or sleeve, said arms being inclined to a horizontal plane in order to exert a downward pressure during operation upon the fluid in which they may be immersed. In practice the upper blade is arranged with the lower rear edges of its arms adjacent to the surface of the liquid contents of the churn-receptacle, but not necessarily immersed therein, whereby a downward pressure is exerted upon the air contiguous to the surface of the liquid to force the air into the liquid and thus aerate the same. The dasher-blades are secured at the desired adjustment by means of set-screws 9, carried by the hubs or sleeves.

While the body portions or arms of the dasher-blades are preferably inclined in a common direction to exert the above de' scribed downward pressure respectively upon the air and the liquid contents of the churnreceptacle, said blades preferably carry deflecting devices which respectively impel the liquid contents of the receptacle upwardly and downwardly. In the construction illustrated the upper dasher-blade is provided with downwardly and forwardly inclined and enlarged funnels 10, fitted in suitable openings near the extremities of the dasher-arms and terminating in nozzles 11, which project rearwardly from the planes of the dasherarms and are open at their rear ends and also at their outer sides, and owing to the downward inclination of said funnels it ,will be seen that the lower portions of the mouths thereof will be immersed sufficiently to gather the liquid contents of the receptacle during the rotation of the dasher and'carry the same upwardly and rearwardly and discharge it laterally in a reduced stream from the nozzles. The lower dasher-blade, on the other hand, is provided at the extremities of its arms with downwardly and rearwardly inclined scoops 12, which may be flush at their front edges with the corresponding edges of the arms and which extend in rear of the rear edges of the arms and are provided at their outer sides with lateral outlets to discharge liquid gathered by the scoops against the side walls of the receptacle. The rear ends of the scoops are inclined rearwardly and outwardly to increase the outward deflection of the liquid described and the lower dasher at a point contiguous to the bottom of the receptacle I am enabled to agitate the contents of the receptacle and at the same time aerate the milk in such a manner as to hasten the separation of the butter, and thus reduce the exertion of churning to the minimum.

The object in extending the funnels of the upper dasher-blade in advance of the body portion thereof will be understood from the fact that said funnels are thereby enabled to gather liquid before the downward pressure of the body portions of the arms can affect the liquid; but as said arms follow closely after the inlet ends of the funnels the air is depressed by the arms into the cavities left in the surface of the liquid. The liquid is unable to close said cavities before air has been forced thereinto by the arms of the upper blade.

In practice various changes in the form, proportion, and the minor details of construction may be resorted to without departing from the spirit or sacrificing any of the advantages of this invention.

Having described my invention, what I claim is- 1. Arotarychurn-dasherhavingaplurality of blades provided with downwardly and rearwardly inclined cross sectionally flat arms, terminating in deflectors which respectively impart upward and downward pressure to the liquid contents of a churn-receptacle, substantially as specified.

2. A rotary churn-dasher having upper and lower blades each consisting of radially-disposed cross-sectionally flat arms, inclined to a horizontal plane to exert downward pressure, the arms of said upper and lower blades respectively carrying funnels and scoops having open front ends and lateral outlets, substantially as specified.

3. A rotary churn-dasher having upperand lower blades of which the body portions consist of radial arms inclined to a horizontal plane to exert a downward pressure, the upper blade having its arms provided with forwardlyextending funnels inclining downwardly toward their mouths, and terminating in discharge-nozzles, and the lower blade having its arms terminating in rearwardly and downwardly inclined scoops having lateral outlets, substantially as specified.

4. A churn-dasher having radial arms of cross-sectionallyflatconstruction,forarrangement contiguous to and above the plane of the surface of the contents of a churn-receptacle, and deflectors carried by the extremities of said arms, and each consisting of a forwardly and downwardly inclined funnel, for partial immersion in the liquid contents of the churn-receptacle, and rearwardly and upwardly inclined communicating nozzles having rear and lateral outlets, substantially as specified.

5. A churn-dasher having radial arms terminating in inclined scoops, open at their front ends, provided with rearwardly and outwardly inclined rear closed ends, and having lateral outlets at the outer extremities of said rear closed ends, toward which liquid is deflected by the inclination of the rear ends, substantially as specified.

In testimony that I claim the foregoing as my own I have hereto affixed my signatu re in the presence of two witnesses.

SILAS SIMS. lVitnesses:

O. H. NORTHAM, J. G. RAIBLE. 

